APA Style
SMITH, ROBERT LEO. (1992).
ELEMENTS OF ECOLOGY (THIRD ED.).
NEW YORK:
.
Chicago Style
SMITH, ROBERT LEO.
ELEMENTS OF ECOLOGY.
THIRD ED.
NEW YORK:
,
1992.
Text.
MLA Style
SMITH, ROBERT LEO.
ELEMENTS OF ECOLOGY.
THIRD ED.
NEW YORK:
,
1992.
Text.
Turabian Style
SMITH, ROBERT LEO.
ELEMENTS OF ECOLOGY.
THIRD ED.
NEW YORK:
,
1992.
Print.